Instruction manual

Oct 04 Issue H
GV Dry Vacuum Pumps
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4 OPERATION 23
4.1 Start the pump 23
4.2 Allow the pump to warm up 23
4.3 Check the purge pressures and flows 24
4.4 Shut down the pump 24
5MAINTENANCE 25
5.1 Safety information 25
5.2 Maintenance plan 25
5.3 Check the gearbox oil-level and fill the gearbox
with oil (if necessary) 27
5.4 Inspect the gas ballast system 27
5.5 Inspect the pipelines and connections 28
5.6 Inspect the interstage relief valve and replace the
hinge bushes, valve flap and valve 'O' ring (if necessary) 28
5.7 Change the gearbox oil and clean the oil-level
sight-glasses 30
5.8 Relubricate the high-vacuum bearings 32
5.9 Flush the cooling jacket 34
5.10 Replace the interstage relief valve 35
5.11 Replace the pump-motor 35
5.11.1 Remove the pump-motor 35
5.11.2 Fit the new pump-motor 36
5.12 Replace the coupling insert 38
5.13 Relubricate the motor bearings 39
5.13.1 General requirements 39
5.13.2 Relubrication intervals 39
5.14 Replace the motor bearings 40
5.15 Overhaul the pump 40
5.16 Fault finding 40
6 STORAGE AND DISPOSAL 43
6.1 Storage 43
6.2 Disposal 43
7 SPARES, SERVICE AND ACCESSORIES 45
7.1 Introduction 45
7.2 Service 45
7.3 Spares and maintenance kits 45
7.4 Accessories 45
7.4.1 Exhaust Silencers 45
7.4.2 Exhaust-Purge Kit 45
7.4.3 Booster Connection Kits 45
7.4.4 Indirect Cooling Kits 45
7.4.5 Other accessories 46
RETURN OF BOC EDWARDS EQUIPMENT
CONTENTS (CONTINUED)
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